Próbuję uruchomić UNPIVOT
na różnych kolumnach zawartych w sys.databases
różnych wersjach SQL Server, od 2005 do 2012.
UNPIVOT
Się niepowodzeniem z następującym komunikatem o błędzie:
Msg 8167, poziom 16, stan 1, wiersz 48
Typ kolumny „CompatibilityLevel” powoduje konflikt z typem innych kolumn określonych na liście UNPIVOT.
T-SQL:
DECLARE @dbname SYSNAME;
SET @dbname = DB_NAME();
SELECT [Database] = unpvt.DatabaseName
, [Configuration Item] = unpvt.OptionName
, [Configuration Value] = unpvt.OptionValue
FROM (
SELECT
DatabaseName = name
, RecoveryModel = CONVERT(VARCHAR(50), d.recovery_model_desc)
, CompatibilityLevel = CONVERT(VARCHAR(50), CASE d.[compatibility_level] WHEN 70 THEN 'SQL Server 7' WHEN 80 THEN 'SQL Server 2000' WHEN 90 THEN 'SQL Server 2005' WHEN 100 THEN 'SQL Server 2008' WHEN 110 THEN 'SQL Server 2012' WHEN 120 THEN 'SQL Server 2014' ELSE 'UNKNOWN' END)
, AutoClose = CONVERT(VARCHAR(50), CASE d.is_auto_close_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoCreateStatistics = CONVERT(VARCHAR(50), CASE d.is_auto_create_stats_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoShrink = CONVERT(VARCHAR(50), CASE d.is_auto_shrink_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoUpdateStatistics = CONVERT(VARCHAR(50), CASE d.is_auto_update_stats_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoUpdateStatisticsAsynch = CONVERT(VARCHAR(50), CASE d.is_auto_update_stats_async_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, CloseCursorOnCommit = CONVERT(VARCHAR(50), CASE d.is_cursor_close_on_commit_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, DefaultCursor = CONVERT(VARCHAR(50), CASE d.is_local_cursor_default WHEN 1 THEN 'LOCAL' ELSE 'GLOBAL' END)
, ANSINULL_Default = CONVERT(VARCHAR(50), CASE d.is_ansi_null_default_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ANSINULLS_Enabled = CONVERT(VARCHAR(50), CASE d.is_ansi_nulls_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ANSIPadding_Enabled = CONVERT(VARCHAR(50), CASE d.is_ansi_padding_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ANSIWarnings_Enabled = CONVERT(VARCHAR(50), CASE d.is_ansi_warnings_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ArithmeticAbort_Enabled = CONVERT(VARCHAR(50), CASE d.is_arithabort_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ConcatNullYieldsNull = CONVERT(VARCHAR(50), CASE d.is_concat_null_yields_null_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, CrossDBOwnerChain = CONVERT(VARCHAR(50), CASE d.is_db_chaining_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, DateCorrelationOptimized = CONVERT(VARCHAR(50), CASE d.is_date_correlation_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, NumericRoundAbort = CONVERT(VARCHAR(50), CASE d.is_numeric_roundabort_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, [Parameterization] = CONVERT(VARCHAR(50), CASE d.is_parameterization_forced WHEN 0 THEN 'SIMPLE' ELSE 'FORCED' END)
, QuotedIdentifiers_Enabled = CONVERT(VARCHAR(50), CASE d.is_quoted_identifier_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, RecursiveTriggers_Enabled = CONVERT(VARCHAR(50), CASE d.is_recursive_triggers_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, [TrustWorthy] = CONVERT(VARCHAR(50), CASE d.is_trustworthy_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, VARDECIMAL_Storage = CONVERT(VARCHAR(50), 'TRUE')
, PageVerify = CONVERT(VARCHAR(50), page_verify_option_desc )
, BrokerEnabled = CONVERT(VARCHAR(50), CASE d.is_broker_enabled WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, DatabaseReadOnly = CONVERT(VARCHAR(50), CASE d.is_read_only WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, EncryptionEnabled = CONVERT(VARCHAR(50), CASE d.is_encrypted WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, RestrictedAccess = CONVERT(VARCHAR(50), user_access_desc)
, Collation = CONVERT(VARCHAR(50), d.collation_name)
FROM sys.databases d
WHERE name = @dbname
OR @dbname IS NULL
) src
UNPIVOT
(
OptionValue FOR OptionName IN
(
RecoveryModel
, CompatibilityLevel
, AutoClose
, AutoCreateStatistics
, AutoShrink
, AutoUpdateStatistics
, AutoUpdateStatisticsAsynch
, CloseCursorOnCommit
, DefaultCursor
, ANSINULL_Default
, ANSINULLS_Enabled
, ANSIPadding_Enabled
, ANSIWarnings_Enabled
, ArithmeticAbort_Enabled
, ConcatNullYieldsNull
, CrossDBOwnerChain
, DateCorrelationOptimized
, NumericRoundAbort
, [Parameterization]
, QuotedIdentifiers_Enabled
, RecursiveTriggers_Enabled
, [TrustWorthy]
, VARDECIMAL_Storage
, PageVerify
, BrokerEnabled
, DatabaseReadOnly
, EncryptionEnabled
, RestrictedAccess
, Collation
)
) AS unpvt;
Ma to na celu zapewnienie ładnie sformatowanej listy opcji bazy danych dla danej bazy danych, podobnie jak:
+----------+----------------------------+----------------------------+
| Database | Configuration Item | Value in Use |
+----------+----------------------------+----------------------------+
| master | RecoveryModel | SIMPLE |
| master | CompatibilityLevel | SQL Server 2008 |
| master | AutoClose | FALSE |
| master | AutoCreateStatistics | TRUE |
| master | AutoShrink | FALSE |
| master | AutoUpdateStatistics | TRUE |
| master | AutoUpdateStatisticsAsynch | FALSE |
| master | CloseCursorOnCommit | FALSE |
| master | DefaultCursor | GLOBAL |
| master | ANSINULL_Default | FALSE |
| master | ANSINULLS_Enabled | FALSE |
| master | ANSIPadding_Enabled | FALSE |
| master | ANSIWarnings_Enabled | FALSE |
| master | ArithmeticAbort_Enabled | FALSE |
| master | ConcatNullYieldsNull | FALSE |
| master | CrossDBOwnerChain | TRUE |
| master | DateCorrelationOptimized | FALSE |
| master | NumericRoundAbort | FALSE |
| master | Parameterization | SIMPLE |
| master | QuotedIdentifiers_Enabled | FALSE |
| master | RecursiveTriggers_Enabled | FALSE |
| master | TrustWorthy | TRUE |
| master | VARDECIMAL_Storage | TRUE |
| master | PageVerify | CHECKSUM |
| master | BrokerEnabled | FALSE |
| master | DatabaseReadOnly | FALSE |
| master | EncryptionEnabled | FALSE |
| master | RestrictedAccess | MULTI_USER |
| master | Collation | Latin1_General_CI_AS_KS_WS |
+----------+----------------------------+----------------------------+
Gdy uruchomię to na serwerze z Latin1_General_CI_AS_KS_WS
sortowaniem, instrukcja powiedzie się. Jeśli zmodyfikuję język T-SQL, aby niektóre pola zawierały COLLATE
klauzule, będzie on działał na serwerach, które mają inne układy.
Kod działający na serwerach z innymi zestawieniami Latin1_General_CI_AS_KS_WS
to:
DECLARE @dbname SYSNAME;
SET @dbname = DB_NAME();
SELECT [Database] = unpvt.DatabaseName
, [Configuration Item] = unpvt.OptionName
, [Configuration Value] = unpvt.OptionValue
FROM (
SELECT
DatabaseName = name
, RecoveryModel = CONVERT(VARCHAR(50), d.recovery_model_desc) COLLATE SQL_Latin1_General_CP1_CI_AS
, CompatibilityLevel = CONVERT(VARCHAR(50), CASE d.[compatibility_level] WHEN 70 THEN 'SQL Server 7' WHEN 80 THEN 'SQL Server 2000' WHEN 90 THEN 'SQL Server 2005' WHEN 100 THEN 'SQL Server 2008' WHEN 110 THEN 'SQL Server 2012' WHEN 120 THEN 'SQL Server 2014' ELSE 'UNKNOWN' END)
, AutoClose = CONVERT(VARCHAR(50), CASE d.is_auto_close_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoCreateStatistics = CONVERT(VARCHAR(50), CASE d.is_auto_create_stats_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoShrink = CONVERT(VARCHAR(50), CASE d.is_auto_shrink_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoUpdateStatistics = CONVERT(VARCHAR(50), CASE d.is_auto_update_stats_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, AutoUpdateStatisticsAsynch = CONVERT(VARCHAR(50), CASE d.is_auto_update_stats_async_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, CloseCursorOnCommit = CONVERT(VARCHAR(50), CASE d.is_cursor_close_on_commit_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, DefaultCursor = CONVERT(VARCHAR(50), CASE d.is_local_cursor_default WHEN 1 THEN 'LOCAL' ELSE 'GLOBAL' END)
, ANSINULL_Default = CONVERT(VARCHAR(50), CASE d.is_ansi_null_default_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ANSINULLS_Enabled = CONVERT(VARCHAR(50), CASE d.is_ansi_nulls_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ANSIPadding_Enabled = CONVERT(VARCHAR(50), CASE d.is_ansi_padding_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ANSIWarnings_Enabled = CONVERT(VARCHAR(50), CASE d.is_ansi_warnings_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ArithmeticAbort_Enabled = CONVERT(VARCHAR(50), CASE d.is_arithabort_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, ConcatNullYieldsNull = CONVERT(VARCHAR(50), CASE d.is_concat_null_yields_null_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, CrossDBOwnerChain = CONVERT(VARCHAR(50), CASE d.is_db_chaining_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, DateCorrelationOptimized = CONVERT(VARCHAR(50), CASE d.is_date_correlation_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, NumericRoundAbort = CONVERT(VARCHAR(50), CASE d.is_numeric_roundabort_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, [Parameterization] = CONVERT(VARCHAR(50), CASE d.is_parameterization_forced WHEN 0 THEN 'SIMPLE' ELSE 'FORCED' END)
, QuotedIdentifiers_Enabled = CONVERT(VARCHAR(50), CASE d.is_quoted_identifier_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, RecursiveTriggers_Enabled = CONVERT(VARCHAR(50), CASE d.is_recursive_triggers_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, [TrustWorthy] = CONVERT(VARCHAR(50), CASE d.is_trustworthy_on WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, VARDECIMAL_Storage = CONVERT(VARCHAR(50), 'TRUE')
, PageVerify = CONVERT(VARCHAR(50), page_verify_option_desc ) COLLATE SQL_Latin1_General_CP1_CI_AS
, BrokerEnabled = CONVERT(VARCHAR(50), CASE d.is_broker_enabled WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, DatabaseReadOnly = CONVERT(VARCHAR(50), CASE d.is_read_only WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, EncryptionEnabled = CONVERT(VARCHAR(50), CASE d.is_encrypted WHEN 0 THEN 'FALSE' ELSE 'TRUE' END)
, RestrictedAccess = CONVERT(VARCHAR(50), user_access_desc) COLLATE SQL_Latin1_General_CP1_CI_AS
, Collation = CONVERT(VARCHAR(50), d.collation_name)
FROM sys.databases d
WHERE name = @dbname
OR @dbname IS NULL
) src
UNPIVOT
(
OptionValue FOR OptionName IN
(
RecoveryModel
, CompatibilityLevel
, AutoClose
, AutoCreateStatistics
, AutoShrink
, AutoUpdateStatistics
, AutoUpdateStatisticsAsynch
, CloseCursorOnCommit
, DefaultCursor
, ANSINULL_Default
, ANSINULLS_Enabled
, ANSIPadding_Enabled
, ANSIWarnings_Enabled
, ArithmeticAbort_Enabled
, ConcatNullYieldsNull
, CrossDBOwnerChain
, DateCorrelationOptimized
, NumericRoundAbort
, [Parameterization]
, QuotedIdentifiers_Enabled
, RecursiveTriggers_Enabled
, [TrustWorthy]
, VARDECIMAL_Storage
, PageVerify
, BrokerEnabled
, DatabaseReadOnly
, EncryptionEnabled
, RestrictedAccess
, Collation
)
) AS unpvt;
Obserwowane zachowanie polega na tym, że następujące pola nie obserwują ani sortowania serwera, ani sortowania bazy danych; zawsze są prezentowane w Latin1_General_CI_AS_KS_WS
zestawieniu.
W SQL Server 2012 możemy sys.sp_describe_first_result_set
łatwo uzyskać metadane dotyczące kolumn zwróconych z określonego zapytania. Użyłem następujących do ustalenia niedopasowania zestawień:
DECLARE @cmd NVARCHAR(MAX);
SET @cmd = '
SELECT
DatabaseName = CONVERT(VARCHAR(50), d.name)
, RecoveryModel = CONVERT(VARCHAR(50), d.recovery_model_desc)
, Collation = CONVERT(VARCHAR(50), d.collation_name)
FROM sys.databases d
WHERE name = DB_NAME();
';
EXEC sp_describe_first_result_set @command = @cmd;
Wyniki:
Dlaczego zestawianie tych kolumn jest ustawione statycznie?
źródło